1
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Saffarionpour S, Diosady LL. Cyclodextrins and their potential applications for delivering vitamins, iron, and iodine for improving micronutrient status. Drug Deliv Transl Res 2024:10.1007/s13346-024-01586-x. [PMID: 38671315 DOI: 10.1007/s13346-024-01586-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 04/28/2024]
Abstract
Cyclodextrins (CDs) have been investigated as potential biopolymeric carriers that can form inclusion complexes with numerous bioactive ingredients. The inclusion of micronutrients (e.g. vitamins or minerals) into cyclodextrins can enhance their solubility and provide oxidative or thermal stability. It also enables the formulation of products with extended shelf-life. The designed delivery systems with CDs and their inclusion complexes including electrospun nanofibers, emulsions, liposomes, and hydrogels, show potential in enhancing the solubility and oxidative stability of micronutrients while enabling their controlled and sustained release in applications including food packaging, fortified foods and dietary supplements. Nano or micrometer-sized delivery systems capable of controlling burst release and permeation, or moderating skin hydration have been reported, which can facilitate the formulation of several personal and skin care products for topical or transdermal delivery of micronutrients. This review highlights recent developments in the application of CDs for the delivery of micronutrients, i.e. vitamins, iron, and iodine, which play key roles in the human body, emphasizing their existing and potential applications in the food, pharmaceuticals, and cosmeceuticals industries.
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Affiliation(s)
| | - Levente L Diosady
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
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2
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Pedotti S, Ferreri L, Migliore R, Leotta CG, Pitari GM, D'Antona N, Petralia S, Aleo D, Sgarlata C, Consoli GML. A novel cationic β-cyclodextrin decorated with a choline-like pendant exhibits Iodophor, Mucoadhesive and bactericidal properties. Carbohydr Polym 2024; 328:121698. [PMID: 38220321 DOI: 10.1016/j.carbpol.2023.121698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024]
Abstract
Iodine is a vital microelement and a powerful antiseptic with a rapid and broad spectrum of action. The development of iodophor compounds to improve the solubility and stability of iodine is still challenging. Here, we report the synthesis of a novel cationic β-cyclodextrin bearing a choline-like pendant (β-CD-Chol) designed to complex and deliver iodine to bacterial cells. The characterization of β-CD-Chol and the investigation of the inclusion complex with iodine were performed by NMR spectroscopy, mass spectrometry, UV-vis spectrophotometry, isothermal titration calorimetry, and dynamic light scattering. The functionalization with the positively charged unit conferred improved water-solubility, mucoadhesivity, and iodine complexation efficiency to the β-CD scaffold. The water-soluble β-CD-Chol/iodine complex efficiently formed both in solution and by solid-vapor reaction. The solid complex exhibited a significant stability for months. Iodine release from the inclusion complex was satisfactory and the bactericidal activity was proved against a Staphylococcus epidermidis strain. The absence of cytotoxicity tested on human keratinocytes and the improved mucoadhesivity make β-CD-Chol a promising drug delivery system and an appealing iodophor candidate for iodine-based antisepsis including mucosa disinfection.
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Affiliation(s)
- Sonia Pedotti
- Institute of Biomolecular Chemistry, CNR, Via Paolo Gaifami 18, 95126 Catania, Italy.
| | - Loredana Ferreri
- Institute of Biomolecular Chemistry, CNR, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Rossella Migliore
- Institute of Biomolecular Chemistry, CNR, Via Paolo Gaifami 18, 95126 Catania, Italy
| | | | | | - Nicola D'Antona
- Institute of Biomolecular Chemistry, CNR, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Salvatore Petralia
- Department of Drug and Health Sciences, University of Catania, Via Santa Sofia 64, 95125 Catania, Italy
| | - Danilo Aleo
- MEDIVIS S.r.l., Via Carnazza 34C, Tremestieri Etneo, 95030 Catania, Italy
| | - Carmelo Sgarlata
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
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3
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Dong X, Sun Q, Xu J, Wang T. Development of a Multifunctional Composite Hydrogel for Enhanced Wound Healing: Hemostasis, Sterilization, and Long-Term Moisturizing Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2972-2983. [PMID: 38170964 DOI: 10.1021/acsami.3c16149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Meeting the diverse requirements of effective wound repair while surpassing the single-function limitations of traditional wound dressings is a significant challenge. In this study, we successfully synthesized an inclusion complex of 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) and iodine using the saturated aqueous solution method. Additionally, dialdehyde cellulose (DAC) was extracted from fat-free cotton through oxidation. To enhance wound healing, l-glutamine (l-glu) was utilized as a functional molecule, resulting in composite hydrogels with hemostatic, sterilizing, and wound-healing-promoting properties that were achieved by adsorbing the resulting inclusion complex. Through TG and SEM analysis, we confirmed that iodine was effectively accommodated by cyclodextrin and was uniformly attached to the hydrogel. The hydrogel exhibits exceptional long-term moisturizing and bactericidal properties, while also demonstrating excellent swelling, oxygen permeability, hemolytic, and mechanical properties, fully satisfying the requirements of wound treatment. External coagulation tests revealed that the hydrogel can rapidly coagulate 4.5 times its own weight of blood. Moreover, in a full-thickness scald mouse model, the hydrogel effectively promotes wound healing. The development of this multifunctional composite hydrogel presents a novel approach to advance wound dressing research, holding substantial potential for practical applications.
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Affiliation(s)
- Xielong Dong
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, Heilongjiang, People's Republic of China
| | - Qian Sun
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, Heilongjiang, People's Republic of China
| | - Juan Xu
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Haidian District, No.12, Da Hui Si Road, Beijing 100081, China
- National Research Institute for Family Planning, Haidian District, No.12, Da Hui Si Road, Beijing 100081, China
| | - Ting Wang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, Heilongjiang, People's Republic of China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Harbin 150040, China
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Dattilo S, Spitaleri F, Aleo D, Saita MG, Patti A. Solid-State Preparation and Characterization of 2-Hydroxypropylcyclodextrins-Iodine Complexes as Stable Iodophors. Biomolecules 2023; 13:biom13030474. [PMID: 36979409 PMCID: PMC10046614 DOI: 10.3390/biom13030474] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
The use of iodine as antiseptic poses some issues related to its low water solubility and high volatility. Stable solid iodine-containing formulations are highly advisable and currently limited to the povidone-iodine complex. In this study, complexes of molecular iodine with 2-hydroxypropyl α-, β- and γ-cyclodextrins were considered water-soluble iodophors and prepared in a solid state by using three different methods (liquid-assisted grinding, co-evaporation and sealed heating). The obtained solids were evaluated for their iodine content and stability over time in different conditions using a fully validated UV method. The assessment of the actual formation of an inclusion complex in a solid state was carried out by thermal analysis, and the presence of iodine was further confirmed by SEM/EDX and XPS analyses. High levels of iodine content (8.3–10.8%) were obtained with all the tested cyclodextrins, and some influence was exerted by the employed preparation method. Potential use as solid iodophors can be envisaged for these iodine complexes, among which those with 2-hydroxypropyl-α-cyclodextrin were found the most stable, regardless of the preparation technique. The three prepared cyclodextrin–iodine complexes proved effective as bactericides against S. epidermidis.
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Affiliation(s)
- Sandro Dattilo
- CNR-Istituto per i Polimeri, Compositi e Biomateriali, Via Paolo Gaifami 18, I-95126 Catania, Italy
| | | | - Danilo Aleo
- MEDIVIS-Via Carnazza 34 C, I-95030 Catania, Italy
- Correspondence: (D.A.); (A.P.)
| | | | - Angela Patti
- CNR-Istituto di Chimica Biomolecolare, Via Paolo Gaifami 18, I-95126 Catania, Italy
- Correspondence: (D.A.); (A.P.)
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Sharipov A, Boboev Z, Fazliev S, Gulyamov S, Yunuskhodjayev A, Razzokov J. Development of an Improved Method for the Determination of Iodine/β-Cyclodextrin by Means of HPLC-UV: Validation and the Thyroid-Stimulating Activity Revealed by In Vivo Studies. Pharmaceutics 2021; 13:pharmaceutics13070955. [PMID: 34201915 PMCID: PMC8309194 DOI: 10.3390/pharmaceutics13070955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 12/02/2022] Open
Abstract
Iodine, being an intrinsic part of thyroid hormones, is a vital microelement required for normal growth and development, particularly in children. Inadequate daily intake of iodine causes iodine deficiency, which is responsible for several health disorders, such as cretinism and goiters. Therefore, the development of new drugs and/or food supplements for iodine deficiency is crucial. We synthesized an iodine/β-cyclodextrin complex based on a host–guest model, and in this paper, we outline the development of a new quantitative analysis method. We suggest a robust and reliable high-performance liquid chromatography method to determine the total amount of iodine species in the complex. Moreover, we performed validation of our method. The results of validation presented here show the reliability, accuracy and high precision of the method. Furthermore, for the first time, we show results of in vivo studies for the thyroid-stimulating activity of the iodine/β-cyclodextrin complex. Our findings indicate that the thyroid-stimulating activity of iodine/β-cyclodextrin is comparable to that of potassium iodide, which is the main active pharmaceutical substance of conventional drugs for iodine deficiency.
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Affiliation(s)
- Avez Sharipov
- Department of Inorganic, Physical and Colloidal Chemistry, Tashkent Pharmaceutical Institute, Oybek Street 45, Tashkent 100015, Uzbekistan; (A.S.); (Z.B.); (S.G.)
| | - Zufar Boboev
- Department of Inorganic, Physical and Colloidal Chemistry, Tashkent Pharmaceutical Institute, Oybek Street 45, Tashkent 100015, Uzbekistan; (A.S.); (Z.B.); (S.G.)
- Medical Devices and Medical Equipment, State Centre of Expertize and Standardization of Medicines, Tashkent 100002, Uzbekistan
| | - Sunnatullo Fazliev
- Max Planck School Matter to Life, Jahnstraße 29, 69120 Heidelberg, Germany;
- Faculty of Chemistry and Earth Sciences, Heidelberg University, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
| | - Shokhid Gulyamov
- Department of Inorganic, Physical and Colloidal Chemistry, Tashkent Pharmaceutical Institute, Oybek Street 45, Tashkent 100015, Uzbekistan; (A.S.); (Z.B.); (S.G.)
- College of Pharmacy, Chungbuk National University, 194-21, Osongsaengmyeong 1-ro, OSONG-Eup, Heungdeok-gu, Cheongju City 28160, Chungbuk, Korea
| | | | - Jamoliddin Razzokov
- Department of Inorganic, Physical and Colloidal Chemistry, Tashkent Pharmaceutical Institute, Oybek Street 45, Tashkent 100015, Uzbekistan; (A.S.); (Z.B.); (S.G.)
- Department of Physics and Chemistry, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
- Department of Physics, National University of Uzbekistan, Tashkent 100174, Uzbekistan
- Institute of Material Sciences, Academy of Sciences, Chingiz Aytmatov 2b, Tashkent 100084, Uzbekistan
- College of Engineering, Akfa University, Kichik Halqa Yuli Street 17, Tashkent 100095, Uzbekistan
- Correspondence:
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Asim MH, Jalil A, Shahzadi I, Khan M, Matuszczak B, Bernkop-Schnürch A. Mucoadhesive S-protected thiolated cyclodextrin-iodine complexes: a promising strategy to prolong mucosal residence time of iodine. Future Microbiol 2019; 14:411-424. [DOI: 10.2217/fmb-2018-0288] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Aim: The purpose of this study was to develop S-protected thiolated α-cyclodextrin–iodine complexes providing prolonged mucosal residence time and sustained release of the antimicrobial agent. Materials & methods: First, L-cysteine was conjugated with 2-mercaptonicotinic acid to generate cysteine-2-mercaptonicotinic acid (Cys-MNA). Subsequently, α-CD was oxidized with NaIO4 and Cys-MNA was bound to the resulting aldehyde groups via reductive amination. Finally, iodine was incorporated into complex. Result: S-protected thiolated α-CD displayed 3804 μmol/g MNA groups. The inclusion constant (KC) between iodine and S-protected thiolated α-CD was 5.37 × 104 M-1. In vitro release of iodine was around 15% per hour, whereas mucoadhesive properties showed 38-fold improvement in mucoadhesion. The complex did not show cytotoxicity at a concentration of 0.5% (m/v). In addition, complexes exhibited pronounced antimicrobial activity against Staphylococcus aureus and Escherichia coli. Conclusion: According to these results, S-protected thiolated α-CD-iodine complex might be a promising novel formulation for the mucosal use of iodine.
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Affiliation(s)
- Mulazim H Asim
- Department of Pharmaceutical Technology, Center for Chemistry & Biomedicine, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Aamir Jalil
- Department of Pharmaceutical Technology, Center for Chemistry & Biomedicine, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria
| | - Iram Shahzadi
- Department of Pharmaceutical Technology, Center for Chemistry & Biomedicine, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria
| | - Momin Khan
- Department of Microbiology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25100, Pakistan
| | - Barbara Matuszczak
- Center for Chemistry & Biomedicine, Department of Pharmaceutical Chemistry, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Center for Chemistry & Biomedicine, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria
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7
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Polumbryk M, Kravchenko V, Pasichnyi V, Omelchenko C, Pachitskaya I. The effect of intake of sausages fortified with β-CD-I2 complex on iodine status and thyroid function: A preliminary study. J Trace Elem Med Biol 2019; 51:159-163. [PMID: 30466926 DOI: 10.1016/j.jtemb.2018.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 10/07/2018] [Accepted: 10/09/2018] [Indexed: 01/12/2023]
Abstract
The present study evaluated influence of boiled sausages consumption fortified with β-CD-I2 on the urinary iodine excretion (UIE) level of volunteers. Median urinary UIE level was increased from 58.02 (24.0-175.4) μg/L to 110.6 (20.5-231.6) μg/L during 10 days. Thyroid stimulating hormone (TSH) and free thyroxine (FT4) levels were determined by radio immunoassay analysis. As it was expected, intake of sausages fortified with β-CD-I2 resulted in rise of FT4 level from 1.1 (0.95-1.25) to 1.23 (1.07-1.63) ng/dL, whereas TSH level decreased from 1.53 (0.47-3.37) mIU/L to 1.1 (0.51-3.17) mIU/L. A dynamic gastrointestinal model in vitro was used in order to determine possibility of 3,5-diiodotyrosine (DIT) formation during consumption of the fortified sausages. The DIT concentration was determined by HPLC-MS method and was found to be 0.38 ng/mL in sausage dialyzate. These findings indicate that β-CD-I2 introduction as an iodine carrier in boiled sausages may help to improve iodine status and to control organic iodine species concentration.
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Affiliation(s)
- Maksym Polumbryk
- National university of food technologies, Problem research laboratory, Volodymyrska St. 68, Kyiv, Ukraine.
| | - Victor Kravchenko
- Institute of endocrinology and metabolism, Department of epidemiology of endocrine diseases, Vyshgorodska St. 69, Kyiv, Ukraine
| | - Vasyl Pasichnyi
- National university of food technologies, Problem research laboratory, Volodymyrska St. 68, Kyiv, Ukraine
| | - Chrystyna Omelchenko
- National university of food technologies, Problem research laboratory, Volodymyrska St. 68, Kyiv, Ukraine
| | - Irina Pachitskaya
- Scientific-practical center for foodstuffs of the National Academy of Sciences of Belarus, Republican control-testing complex of fudstuffs quality and safety, Kozlova St. 29, Minsk, Belarus
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8
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Reddersen K, Finger S, Zieger M, Wiegand C, Buschmann HJ, Elsner P, Hipler UC. Cytocompatibility testing of cyclodextrin-functionalized antimicrobial textiles-a comprehensive approach. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:190. [PMID: 27844305 DOI: 10.1007/s10856-016-5804-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Functionalized textiles can be used in wound management to reduce the microbial burden in the wound area, to prevent wound infections, and to avoid cross-contamination between patients. In the present study, a comprehensive in vitro approach to enable the assessment of antibacterial activity of functionalized textiles and cytotoxicity of cyclodextrin (CD)-complexes with chlorhexidine diacetate (CHX), iodine (IOD), and polihexanide (PHMB) is suggested to evaluate their properties for supporting optimal conditions for wound healing. For all β-CD-antiseptic functionalized cotton samples a strong antibacterial effect on the Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis as well as on the Gram-negative bacteria Klebsiella pneumoniae and Escherichia coli was proven. In addition, β-CD-CHX and β-CD-PHMB were effective against the yeast Candida albicans. The growth of Pseudomonas aeruginosa could be reduced significantly by β-CD-IOD and β-CD-PHMB. The established comprehensive testing system for determination of biocompatibility on human HaCaT keratinocytes is suitable for obtaining robust data on cell viability, cytotoxicity and mode of cell death of the β-CD-antiseptic-complexes. The promising results of the high antimicrobial activity of these functionalized textiles show the high potential of such materials in medical applications.
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Affiliation(s)
| | - Susanne Finger
- Department of Dermatology, University Hospital Jena, Jena, Germany
| | - Michael Zieger
- Department of Dermatology, University Hospital Jena, Jena, Germany
| | - Cornelia Wiegand
- Department of Dermatology, University Hospital Jena, Jena, Germany
| | | | - Peter Elsner
- Department of Dermatology, University Hospital Jena, Jena, Germany
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9
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Полумбрик М, Котляр Є, Омельченко Х, Полумбрик М, Пасічний В. Використання комплексу β- циклодектрину з йодом при виробництві варених ковбасних виробів. FOOD SCIENCE AND TECHNOLOGY 2016. [DOI: 10.15673/fst.v10i3.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Отримано комплекс β-циклодекстрину з йодом, який був використаний в якості добавки для збага-чення йодом м’ясних сосисок.Досліджено можливість утворення 3,5-дийодтирозину внаслідок взаємодії між L-тирозином та отриманим ком-плексом за допомогою методу високоефективної рідинної хроматографії. Концентрація 3,5-дийодтирозину збільшу-ється від 640 нг/см3 до 1200 нг/см3 при підвищенні концентрації тирозину від 2,2 до 11 мM при постійній (2 мM) кон-центрації комплексу β-циклодектрин-I2.Об’єктом збагачення йодом слугували м’ясні сосиски, зважаючи на їхнє розповсюдження в раціоні харчуваннялюдини та значну кількість фрагментів L-тирозину у білковій фракції. Розроблено рецептуру м’ясних сосисок із вміс-том отриманого комплексу 4 мкг/ г продукту, що повністю забезпечує добову потребу в цьому мікроелементі приспоживанні 150 г цих виробів. Розроблений комплекс не впливає на органолептичні та мікробіологічні характеристи-ки готових виробів.
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Wei L, Cheng J, Meng Y, Ren Y, Deng H, Guo Y. A novel formulation of thiamine dilaurylsulphate and its preservative effect on apple juice and sterilised milk. Food Chem 2013; 152:415-22. [PMID: 24444956 DOI: 10.1016/j.foodchem.2013.11.159] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 10/22/2013] [Accepted: 11/26/2013] [Indexed: 11/28/2022]
Abstract
Thiamine dilaurylsulphate (TLS), synthesised by a new method, was developed for a formulation with a wide antimicrobial spectrum and evaluated in apple juice and milk. The result of a disc diffusion method showed that TLS, which was synthesised from sodium lauryl sulphate and thiamine hydrochloride, had strong growth-inhibitory effects on Gram-positive bacteria, yeasts, and moulds, but had weak inhibitory effects on Gram-negative bacteria such as Escherichia coli. Moreover, the TLS antibacterial spectrum could be broadened to all microbes by formulation with organic acids, such as gluconic acid or acetic acid, since organic acids have synergistic effects on TLS bacteriostasis. Compared to TLS, the formulation had a better preservation in milk (pH 6.64) by viable microbial counting, although the antibacterial effect of the formulation with TLS showed no significant difference in apple juice (pH 3.98). Therefore, the TLS formulation has wide application and better potential, as a preservative, to enhance food safety.
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Affiliation(s)
- Lina Wei
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Jing Cheng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Yonghong Meng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China.
| | - Yuanyuan Ren
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Hong Deng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Yurong Guo
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
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He S, Wang B, Chen H, Tang C, Feng Y. Preparation and antimicrobial properties of gemini surfactant-supported triiodide complex system. ACS APPLIED MATERIALS & INTERFACES 2012; 4:2116-2123. [PMID: 22404136 DOI: 10.1021/am300094f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Iodine is an effective, simple, and inexpensive bactericide in disinfection. However, the poor solubility and stability of iodine in water limit its applications. In addition, the active iodine content in the commercial iodophors is quite low, and the reported triiodide complex is unstable. In this work, a long-term stable triiodide complex antimicrobial system was prepared by mixing iodine and a cationic gemini surfactant into lauryldimethylamine oxide (LDAO) aqueous solution, and its stability was examined by means of UV-vis spectrophotometry. It was found that the content of LDAO, cationic gemini surfactant and H(2)SO(4) played crucial roles in stabilizing antimicrobial system, and the active iodine (i.e., triiodide complex) content of the optimum formulation can remain stable for 150 days, as iodine is encapsulated by the mixed vesicles assembled by the protonated LDAO and the added gemini surfactant. However, the active iodine reduced rapidly when NaCl was added or the pH was increased in the environment. Furthermore, the antimicrobial efficacy of the optimized formulation was studied against Candida albicans, and more than 4 log reduction in viable cell after 5 min of contact was obtained.
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Affiliation(s)
- Shuai He
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, People's Republic of China
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